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POGet integer value from edittext
 

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  1. POGet integer value from edittext
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    <p>When I try to run the code below, my program has stops. I want this code to get the value from <code>edittext</code> but it´s not working as I expected it. What am I doing wrong?</p> <pre><code>public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button sum = (Button) findViewById(R.id.button1); Button cancel = (Button) findViewById(R.id.button2); final EditText from = (EditText) findViewById(R.id.editText1); final EditText upto = (EditText) findViewById(R.id.editText2); final EditText runsum = (EditText) findViewById(R.id.editText3); final int f = Integer.parseInt(from.getText().toString()); final int u = Integer.parseInt(upto.getText().toString()); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } } </code></pre> <p>Here is my LogCat sorry for mess :/ </p> <pre><code>08-28 19:34:44.241: E/Trace(3346): error opening trace file: No such file or directory (2) 08-28 19:34:44.780: D/AndroidRuntime(3346): Shutting down VM 08-28 19:34:44.780: W/dalvikvm(3346): threadid=1: thread exiting with uncaught exception(group=0x40a13300) 08-28 19:34:44.790: E/AndroidRuntime(3346): FATAL EXCEPTION: main 08-28 19:34:44.790: E/AndroidRuntime(3346): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.project/com.example.project.MainActivity}: java.lang.NumberFormatException: Invalid int: "" 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.app.ActivityThread.access$600(ActivityThread.java:130) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.os.Handler.dispatchMessage(Handler.java:99) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.os.Looper.loop(Looper.java:137) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.app.ActivityThread.main(ActivityThread.java:4745) 08-28 19:34:44.790: E/AndroidRuntime(3346): at java.lang.reflect.Method.invokeNative(Native Method) 08-28 19:34:44.790: E/AndroidRuntime(3346): at java.lang.reflect.Method.invoke(Method.java:511) 08-28 19:34:44.790: E/AndroidRuntime(3346): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 08-28 19:34:44.790: E/AndroidRuntime(3346): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 08-28 19:34:44.790: E/AndroidRuntime(3346): at dalvik.system.NativeStart.main(Native Method) 08-28 19:34:44.790: E/AndroidRuntime(3346): Caused by: java.lang.NumberFormatException: Invalid int: "" 08-28 19:34:44.790: E/AndroidRuntime(3346): at java.lang.Integer.invalidInt(Integer.java:138) 08-28 19:34:44.790: E/AndroidRuntime(3346): at java.lang.Integer.parseInt(Integer.java:359) 08-28 19:34:44.790: E/AndroidRuntime(3346): at java.lang.Integer.parseInt(Integer.java:332) 08-28 19:34:44.790: E/AndroidRuntime(3346): at com.example.project.MainActivity.onCreate(MainActivity.java:25) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.app.Activity.performCreate(Activity.java:5008) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 08-28 19:34:44.790: E/AndroidRuntime(3346): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 08-28 19:34:44.790: E/AndroidRuntime(3346): ... 11 more 08-28 19:35:10.560: E/Trace(3394): error opening trace file: No such file or directory (2) 08-28 19:35:11.629: D/gralloc_goldfish(3394): Emulator without GPU emulation detected. 08-28 19:48:19.295: I/Choreographer(3394): Skipped 41 frames! The application may be doing too much work on its main thread. </code></pre>
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    1. PTQuestion
    1. USBartosz Przybylski
    1. UStheduman
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POGet integer value from edittext
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    2. VO
      singulars
      1. POGet integer value from edittext
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. COis it throwing an error, what does that mean that "i couldn't make it"? If you are having errors you should post your logcat
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      1. POGet integer value from edittext
      1. USMikeIsrael
    2. COWhere are you trying to get the editText from? What kind of object is R? it seams alot of other code or atleast some explenations are missing.
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      1. POGet integer value from edittext
      1. USPablo Jomer
 

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